Kepong MP Tan Seng Giaw has lashed out at an anti-incinerator NGO that criticised him for his lack of support, even taking to task a DAP colleague who has been supporting the NGO.

The DAP veteran went as far as telling fellow Serdang MP Ong Kian Ming to "mind his own business" for actively supporting the Kuala Lumpur Tak Nak Insinerator (KTI) group.